Species Echinoecus pentagonus (A. Milne Edwards, 1879)
- Eumedon pentagonus Milne Edwards, A. 1879. Description de quelques Crustacés nouveaux. Bulletin de la Société Philomathique de Paris 7 3: 103-110 [104].
Type data:
Holotype MNHP B 24731 ♂, Mauritius. - Eumedon convictor Bouvier, E.L. & Seurat, G. 1905. Eumedon convictor, crabe commensal d'un oursin. Comptes Rendus (Hebdomadaires) des Séances de l'Academie des Sciences. Série D. Sciences Naturelles 140: 629-631 [629].
Type data:
Holotype MNHP B 24733 ♀, Hao Lagoon, Tuamotu Archipelago, French Polynesia. - Eumedonus petiti Gravier, C. 1922. Sur un nouveau Crabe (Eumedonus petiti nov. spec.) commensal d'un Oursin de Tulear (Madagascar). Bulletin du Muséum National d'Histoire Naturelle, Paris [published 1907-1971] 28: 484-486 [484].
Type data:
Syntype(s) MNHP B 24732 ♂ ♀, Tulear, Madagascar. - Echinoecus rathbunae Miyake, S. 1939. Note on crabs of the genus Echinoecus Rathbun living commensally with echinoids (Parthenopidae, Eumedoninae). Annotationes Zoologicae Japonenses 18: 83-94, text-figs 1-3 [84, 88 figs 1A, 2A, 1-2] [nom. nov. for Echinoecus pentagonus Rathbun, 1894].
Type data:
Syntype(s) ♀, Bonin Islands. - Echinoecus klunzingeri Miyake, S. 1939. Note on crabs of the genus Echinoecus Rathbun living commensally with echinoids (Parthenopidae, Eumedoninae). Annotationes Zoologicae Japonenses 18: 83-94, text-figs 1-3 [85, 88 (in key)] [nom. nov. for Liomedon pentagonus Klunzinger, 1906].
Type data:
Syntype(s). - Liomedon pentagonus Klunzinger, C.B. 1906. Die Spitz- und Spitzmundkrabben des Roten Meeres. Stuttgart 88 pp. pls 1, 2. [57, 89 pl. 2 figs 11, 11a-d].
Type data:
Status unknown, Red Sea. - Echinoecus pentagonus Rathbun, M.J. 1894. Notes on the crabs of the family Inachidae in the U.S. National Museum. Proceedings of the United States National Museum 17(984): 43-75, 1 pl. [43, 66].
Type data:
Holotype USNM 13889 ♀, Port Lloyd, Bonin [Ogasawara] Islands, Japan.
Taxonomic Decision for Synonymy
- Chia, D.G.B., Castro, P. & Ng, P.K.L 1999. Revision of the genus Echinoecus (Decapoda: Brachyura: Eumedonidae), crabs symbiotic with sea urchins. Journal of Crustacean Biology 19(4): 809-824 [811]
Distribution
Extra Distribution Information
Indo-west Pacific Oceans.
IMCRA
Cocos (Keeling) Island Province (22), Christmas Island Province (23)
Ecological Descriptors
Benthic, reef, subtidal, symbiotic.
Extra Ecological Information
Associated with echinoids including: Diadema savigni (Michelin) (Diadematidae), Diadema setosum (Leske) (Diadematidae), Echinothrix calamaris (Pallas) (Diadematidae), Echinothrix diadema (Linnaeus), Heterocentrotus mammilatus (Linnaeus) (Echinometridae), Pseudocentrotus depressus (Agassiz) (Strongylocentrotidae), adult females typically live in the rectum, whereas males live externally on the test.
General References
Van Dover, C.L., Gore, R.H. & Castro, P. 1986. Echinoecus pentagonus (A. Milne Edwards, 1879): larval development and systematic position (Crustacea: Brachyura: Xanthoidea nec Parthenopidea). Journal of Crustacean Biology 6: 757-776 (full larval development described)
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 04-Jun-2012 | 04-Jun-2012 | MOVED | ||
| 10-May-2012 | 10-May-2012 | MODIFIED | ||
| 12-Feb-2010 | (import) |